Atomizer



(No Model.)

A. M. SHURTLEFF.

ATOMIZER.

Patented Mar. 20, 1888.

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UNiTED TATES ASAHEL M. SHURTLEFF, OF BOSTON, MASSACHUSETTS.

ATOiVllZER.

EPECIPICATION forming part of Letters To aZZ whom it may concern:

Be it known that I, ASAHEL M. SHURTLEFF, of Boston, county ofSulifollr,a11d State of Massachusetts, have invented an Improvement inAtomizers, of which the following description, in connection with theaccompanying drawings, is a specification, likeletters on thedraw ingsrepresenting like parts.

This invention has for its object to construct an atomizer which may bemore cheaply made, more efficient in operation, and more durable; andthe invention consists in many details of construction, to behereinafter pointed out in the claims at the end of this specification.

I wish to state at the outset that while I have shown and describedherein the following mat ter-namely, a liquid-holding jar, a cap orstopper therefor, and inlet and outlet tubes, combined with atubecommunieating with the inlet-tube and bent at its lower end towardthe wall of the jar to form an offset, and atomizing-nozzles arrangedupon the offset portion of the said tube to direct the spray against theopposing wall of the jar, I do not claim the same specifically, butreserve it for my application for patent, filed November 21, 1887,Serial No. 255,757.

Figure l shows,in side elevation and partial section, an atomizerembodying this invention, and Fig. 2 a vertical section of the cap orstopper.

The bottle a has a screw-threaded neck, a, and an annularly-groovedbottom, a A metal cap, or, provided with screw-threads is made to fitthe screw-threaded neck of the bottle. The cap has fitted into itahard-rubber or other anti-corrosive plate, at and a soft-packingwasher, a the said washer bearing upon the upper end of the neck of thebottlea when the screwcap is turned upon the bottle, such cap serving,in the present instance, as a stopper.

The hard-rubber or anti-corrosive plate is cut of suitable size tosnugly fit the cap a and the plate having been placed within the cap thelatter is screw-threaded, the pitch of the thread being sufficient toform an annular groove to receive and hold the plate. The cap a isprovided externally with a nipple or plug, a (see dotted line) uponwhich is sprung a flexible tube, a having a suitable mouthpiece, a". Atubular coupling, a is soldered or otherwise attached to the cap a, thesaid Patent No. 379,611, dated March 20,1888.

Application filed December 15, 1886. Serial No. 220,611. (No modell)coupling being tapped to receive the air-tube c, which passes up wardthrough the hardrubthe bottle, said coupling a projecting sufficientlybeyond the edge of the cap or stopper to serve as a handle by which tofacilitate removing the cap.

The air-tube c is bent outward intermediate of its length to passdownward along the inside of the bottle, and it is provided at its lowerend with the atomizing nozzles or orifices 2 3, arranged in usual mannerwith rela tion to each other, the liquid-tube c, which receives thenozzle 2,'being made or molded in tegral with the air-tube c, and justabove the exits of the atomizingoriiices 2 3 a suitable guard, 0projects,which is also made integral with the piece containing the airand liquid tubes, such a guard serving to protect the ends of theatomizing nozzles or orifices, preventing the said nozzles from strikingthe interior of the neck and shoulder of the bottle when the said tubesare removed.

Making the air and liquid tubes 0, guard 0", and bearing for theatomizing-nozzles 2 in one piece greatly strengthens and also cheapensthe construction, and by bending the tubes outward, as described, theatomized liquid blown or forced from the tube and beaten into spray hasa much greater distance to travel be fore striking the hard or comminuting surface at the opposite side of the jar, which in turn againacts to beat the sameinto finer particles, completely filling the jarwith the spray and forcing it outward through the flexible tube a andmouth-piece a.

In practice it has been found that the greater the distance theatomizing-tubes are located from the hard striking-surface the finer theparticles of spray. The air is forced by a suitable air-pump, A, intothe receiver A, and from thence it passes through the tube 1) to thetube 1), through the air-filter b", of any usual construction, which isattached to or fitted into the tubular coupling a The tubes 1) b arejoined by a controlling air cock or valve, d, provided with a valvestem, which, when pressed, opens the port, admitting air to the tube 1),so that the receiver A can be filled with air under quite heavy pressureand the patient can admit the air to the jar as suits his convenience.

ber plate a and downward to the bottom of It is obvious that, instead ofemploying the air pump and valve, an ordinary bulb and flexibletubecommon to atomizers may be employed, and also, if desired,theairfilter may be removed.

It has been found in practice that by forcing the air through longflexible tubes particles of the substance forming a part of the rubbercompound, as sulphur, for instance, and other foreign material, areconveyed into the air-tube a, checking the passage of air through thenozzle 3, and by providing the air-filter, as shown and described, thisditficulty is obviated. The air-filter also serves to arrest dust anddisease-germs, if any are contained in the air of the room, and whilethe location herein shown for the filter is most effectual, I do notherein desire to limit myself to any particular location.

I do not herein specify any particular construction of filter, but'Iprefer to employ one containing a piece of wire-gauze supporting a smallamount of cotton.

The annular groove aflinto which the lower end of the bent tube 0enters, having small holding capacity, but large in vertical area,admits of great economy in the use of medicines when'used in connectionwith the tube herein described, and instead of making the grooveentirely around the lower portion of the bottle a small cavity or wellmay subserve all the requirements.

I am aware that it is old to make an atomizer comprising aliquid-holding jar and acap I or stopper therefor, and a liquid and airtube constructed in a single substantially straight stem andjet-orifices located at a point between the ends of said substantiallystraight stem.

I claim 1. In an atomizer, the j ar a and cap therefor, to which areattached the air-tube c and outlettuhe a, combined with a hard-rubberplate, (2*, having a screw-threaded hole to receive the upper end of theair-tube c, and a soft-packingwasher, a, resting against the rubberplate a, 5 substantially as and for the purpose described.

2. In an atomizer,,a jar, a, and cap or stopper therefor, combined witha tube having at its lower end the atomizing nozzles or orifices 23, anda guard, 0 to protect the said atomizing-nozzles, substantially asdescribed.

3. In an atomizer, the jar or and the cap or stopper therefor,to whichthe inlet and outlet tubes are attached, combined with the tube 0,

bent-to conform to substantially the outline of 5 the body of the jarand having the end portion 0', constructed integrally with thenozzle 2,substantially as set forth.

4. In an atomizer, thejar a and cap or stopper, combined with thetubular coupling a, secured directly to the cap or stopper, and anair-tube located within the jar and attached to the tubular coupling,said air'tube having at its lower end the atomizing-nozzles.

5. The atomizing exit-orifices and an air- 6 duct leading thereto,combined with an airfilter through which the air passes previous topassing through the atomizing exit-orifices, substantially as described.I

6. The'jar a, containing the atomizing-noz- 7o zles and the outlet andinlet tubes connected with the jar a, combined with an air-forcingapparatus and a cut-off or controlling valve controlling the passage ofair to the jar a, said valve consisting of a valve case and seat, and 7a plunger movable in the direction of the length of the valve-case,substantially as described.

In testimony whereofI have signed my name to this specification in thepresence of two sub scribing witnesses.

ASAHEL M. SHURTLEFF.

